Rector-Elements

Cesium
By:Lorenzo Wright

FYI- Every Thing in Perenthenses Are IMPORTANT!!!!!!!!!!!!!!!!!!!!!!!!!

Who Discovered it?
The Discover of my Element is (Fustov Kirchoff).

When he Discovered it?
He Discovered it in (1860).

Symbol, Atomic Number, & Atomic Mass.
Symbol-(Cs)
Atomic Number-(132.90545)
Atomic Mass-(55)

Protons, Electrons, & Nuetrons.
Protons-(55)
Electrons-(55)
Nuetrons-(78)

Where it was found?
It was found on (Land). The State of matter is (Solid).

Physical Facts
Melting Point- (25.8 Degrees Celcius)
Boling Point- (678.4 Degrees Celcius)
Density- (1.873 g/cm3)

Abundance in the Earth's Crust
The Abundance in the Earth's crust has been estimated at about 1 to 3 parts per million.

Sources
http://education.jlab.org/itselemental/ele055.html
http://www.chemistryexplained.com/elements/A-C/Cesium.html#ixzz1EtmYCPeo
http://www.radiochemistry.org/periodictable/elements/55.html

Thank YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!